1602. In a complete botanic garden, the following seem to be requisites: - 1. A curator's house, with seed-room, office for business, library of reference, herbarium, room for lectures or demonstrations. This is most generally situated at or near the entrance of the garden. Some consider it desirable to place a lodge at the entrance for the under-gardeners, and to place the curator's house with its accompaniments as above, in connection with the range of hothouses. 2. A range of hothouses, either in one line, or in a semicircle, circle, square, half-square, &c., according to taste, and other circumstances; with back sheds for all the usual purposes of such, including rooms for the journeymen, where there is no lodge; and lodgings for one man, even if there is a lodge, in order to attend to the fires. 3. An adjoining arrangement of pits and frames, but not in front of the range of hothouses, as in a nursery. 4. A compost ground for all the usual purposes. 5. An aquarium, including a bog, pond, spring, and saltwater cistern, for marine algï¾µ. 6. A rockwork and underneath pendant walls, tunnels, vaults, and caves, open in different degrees and directions, for the growth of mosses, ferns, fungi, &c. 7. Borders, shaded and kept moist in different degrees for ferns and other appropriate plants. 8. A fungi-ground, shaded by trees or vaults, and containing stumps and roots of trees of different kinds, and other means for the preservation, as far as art will go, of a collection of native or hardy fungi, edible, and poisonous. 9. An American or bog-earth ground, either a border, or connected groups, or a composite figure surrounded by walks. 10. An estivetium, or paved area, for setting out the green-house plants in summer. In the pavement ought to be holes, for iron rods connected with wires, for tying up the taller and more flexible plants. 11. A grass-ground or gramineum for bringing all the grasses together. 12. A compartment for the plants used in medicine, according to the Pharmacop£ias of the different universities, &c. 13. A compartment for the hardy poisonous plants, 14. Compartments for the plants and trees used in agriculture, horticulture, dyeing, and other tranches of general economy. 15. A compartment for florists' and border flowers. 16. A compartment, or, what is generally preferable, a surrounding border or belt, for trees and shrubs.